Polar CS400 Cycling Computer: Cycling and exercise data are recorded and displayed during exercise.
Polar WearLink® 31 Coded Transmitter: The transmitter sends the heart rate signal to the cycling computer. The transmitter consists of a connector and a strap.
Polar Bike Mount™: Secure the bike mount to your bike and attach the cycling computer to it.
Polar Speed Sensor™: A wireless speed sensor measuring speed and distance during cycling.
Optional Cadence Sensor™: A wireless cadence sensor measuring the speed at which you turn the cranks of your bicycle, expressed in revolutions per minute (rpm).
CD-ROM: Including Polar ProTrainer 5™ software and a complete User Manual to help you make the most out of your cycling computer.